Add configuration tunable for pool worker choice strategy

[e-mobility-charging-stations-simulator.git] / src / utils / Configuration.ts

diff --git a/src/utils/Configuration.ts b/src/utils/Configuration.ts
index d71af225afec4539344c45da6a3af47604a51219..1a2b714a5fae5f0282fd95f690e5320da8341844 100644 (file)
--- a/src/utils/Configuration.ts
+++ b/src/utils/Configuration.ts
@@ -1,13 +1,20 @@
 import ConfigurationData, { StationTemplateURL } from '../types/ConfigurationData';
 
-import Bootstrap from '../charging-station/Bootstrap';
+import Constants from './Constants';
+import type { WorkerChoiceStrategy } from 'poolifier';
 import { WorkerProcessType } from '../types/Worker';
 import fs from 'fs';
+import path from 'path';
 
 export default class Configuration {
-  private static configurationFilePath = './src/assets/config.json';
+  private static configurationFilePath = path.join(path.resolve(__dirname, '../'), 'assets', 'config.json');
   private static configurationFileWatcher: fs.FSWatcher;
   private static configuration: ConfigurationData;
+  private static configurationChangeCallback: () => Promise<void>;
+
+  static setConfigurationChangeCallback(cb: () => Promise<void>): void {
+    Configuration.configurationChangeCallback = cb;
+  }
 
   static getStatisticsDisplayInterval(): number {
     // Read conf
@@ -46,6 +53,10 @@ export default class Configuration {
     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerProcess') ? Configuration.getConfig().workerProcess : WorkerProcessType.WORKER_SET;
   }
 
+  static getWorkerStartDelay(): number {
+    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerStartDelay') ? Configuration.getConfig().workerStartDelay : Constants.WORKER_START_DELAY;
+  }
+
   static getWorkerPoolMinSize(): number {
     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMinSize') ? Configuration.getConfig().workerPoolMinSize : 4;
   }
@@ -55,6 +66,10 @@ export default class Configuration {
     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMaxSize') ? Configuration.getConfig().workerPoolMaxSize : 16;
   }
 
+  static getWorkerPoolStrategy(): WorkerChoiceStrategy {
+    return Configuration.getConfig().workerPoolStrategy;
+  }
+
   static getChargingStationsPerWorker(): number {
     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'chargingStationsPerWorker') ? Configuration.getConfig().chargingStationsPerWorker : 1;
   }
@@ -117,10 +132,13 @@ export default class Configuration {
   }
 
   private static getConfigurationFileWatcher(): fs.FSWatcher {
-    return fs.watch(Configuration.configurationFilePath).on('change', async (e) => {
+    // eslint-disable-next-line @typescript-eslint/no-misused-promises
+    return fs.watch(Configuration.configurationFilePath).on('change', async (e): Promise<void> => {
       // Nullify to force configuration file reading
       Configuration.configuration = null;
-      await Bootstrap.getInstance().restart();
+      if (!Configuration.isUndefined(Configuration.configurationChangeCallback)) {
+        await Configuration.configurationChangeCallback();
+      }
     });
   }